Home / 13,589.29-20,351.01-6,908.21

Finding the Fourth Proportional to 13,589.29, 20,351.01 and 6,908.21

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Solution

The fourth proportional to 13,589.29, 20,351.01 and 6,908.21 is: 10,345.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.29 : 20,351.01 = 6,908.21 : x
  2. Step 2: Convert to fraction form
    13,589.29/20,351.01 = 6,908.21/x
  3. Step 3: Cross multiply
    13,589.29x = 20,351.01 × 6,908.21
  4. Step 4: Simplify right side
    13,589.29x = 140,589,050.79
  5. Step 5: Solve for x
    x = 140,589,050.79/13,589.29
  6. Step 6: Final answer
    x = 10,345.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.